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list of storage devices

Recordable – blank discs that can be burnt (written to) once. These are... Optical Storage Devices. It is a very fast solid state storage medium that is directly accessible by the CPU. UNIVAC tapes were ½" wide, 0.0015" thick, up to 1,500' long, and made of phosphor-bronze with a metallic coating. Q2. These heads are attached to single access arm, due to this they can’t move independently. Types of Storage Devices Physical components or materials on which data is stored are called storage media. ROM is a non-volatile memory chip whose contents cannot be altered. 3. The data needs to be continually refreshed otherwise it fades away. Thus, storage devices differ in the technology they use to maintain data and in their physical structure. It supports both conventional images and high definition television systems. The data on tapes accessing is slower than disks. This is because using a HDD as the primary memory would cause a computer to perform much slower (a HDD or SSD is not directly accessible to the CPU, and isn’t as fast as RAM). 11. Data is copied from secondary storage (HDD, SSD) to RAM as and when it is needed. To increase capacity further, DVDs are also capable of dual layering. CD’s and DVD’s are ideal for storing a list of songs, movies, media or software for distribution or for giving to a friend due to the very low cost per disk. Examples of storage devices include Hard Disk, CD and DVD etc. They can hold data of 100 MB. 4. The data stored on the card can be transferred to a computer using a built-in card reader or a reader connected via USB. List of Computer Storage Devices Magnetic Storage Devices. The data can transfer with the rate of 2 MBps. Our Data Storage Capacity page explains all about the various units of storage. Data is stored in this … Until we reach a point were large capacity SSDs are affordable, a compromise is to run two disk drives inside a computer. Floppy Disk This device mainly used for recording data. A reel-to-reel tape recorder (Sony TC-630). The device can be external or internal to a computer, server, and other computing systems. However hard disks can hold more data and also be having faster transfer rate when compared to floppy disk. Magnetic drum: It is a metallic cylinder coated with a special magnetic alloy. If you continue to use this site we will assume that you are happy with it. It is a high-speed semiconductor related memory and it can increase the speed of CPU. Detach: Detach the selected device from the host. Optical Disks The data on optical disks can be read and written by laser. Page 219 8-Storage •Primary storage –Volatile storage –Temporary storage •Secondary storage –Nonvolatile storage Permanent storage Our Cloud Computing page explains all about the benefits and drawbacks of using the cloud for storage or services. When used within a CCTV system you could review footage whilst still recording your cameras. 3) Cost Effective: The Cost of Secondary Storage Devices is very lower in compare to the Main Memory So that they are also called as the more cost effective and they … Earn lots of free storage. One of storage device is the primary storage; another one of storage is … Typical HDD capacities are measured in Terabytes (TB). the BIOS). Dividing the surface in this way provides physical addresses to remember where data is saved. This means, for example, that when used in a personal video recorder you can record one television programme whilst watching a recording of another. Computers operating with a capacity of RAM above the recommended minimum will benefit from better performance and multitasking. Other types of flash storage include the memory cards used in digital cameras. Convenience − With the help of a computer software, authorised people can locate and access the data quickly. Availability of specific icons depends on the device type and configuration. Arithmetic and logical units operated efficiently when the stored information directly accessible at high speed. Here we will discuss in a detailed manner about storage devices and components of the central processing unit and CPU operations with memory utilization. Crashing 4. They use NAND flash memories (millions of transistors wired in a series on a circuit board), giving them the advantage of having no mechanical moving parts and therefore immediate access to the data. Storage devices are also known as storage medias or storage medium. Slower than registers, but faster than main memory and also required less access time, when compared to main memory. We use cookies to ensure that we give you the best experience on our website. we already discussed memory unit in earlier chapters briefly. Mobile and desktop apps. Other types of flash storage include the memory cards used in digital cameras. These are also related to sequential access media. 10. The data can be stored up to 1 GB, but most common size is 630 MB. A storage device refers to a computing hardware used to store information permanently or temporarily. Registers are special memory units and keep data on temporary as the instructions are interpreted and executed by the Central Processing Unit. Tracking 2. The same device may also have optical disk drives and externally connected USB drives. The storage capacity of this ranging from kilobytes to Gigabytes. A storage device is a piece of electronic hardware made to store data. Hard drives permanently retain any data recorded on them. Optical disks can be classified into three types. Storage devices are used to store data and instructions permanently. These types of devices also called as DAT tapes. Because it acts as a backup storage device and slowest memories in the memory hierarchy. Below are explanations about different storage devices. 5. 5.1 Types of storage devices. Whilst the disc is rotating at a constant speed, a laser is pointed at the spiral track of ‘bumps’. Allotting 3. Cost − It is much lesser expensive to store data on a tape or disk than primary memory. CD, DVD and Blu-Ray drives are optical storage devices. Computer storage devices - computer awareness questions Q1. ANSWER: Storage. Data storage is the recording (storing) of information in a storage medium. Software View Answer / Hide Answer. Intuitive file and folder … secondary storage devices with much greater capacity than floppy disks. Storage devices are the computer hardware used to remember/store data. Zip disks are inexpensive and durable. Why Secondary Storage Devices are Used? DAT- Digital Audio Tape: This is also the type of magnetic tape that uses the helical scan of record … What is the program … Notify me of follow-up comments by email. Unless you're splurging on a high-end model, most new computers don't come with much storage space -- typically, they have 256 or possibly 512 gigabytes. Storage devices are divided into primary storage devices and secondary storage devices, but there are two different ways to consider which devices are primary and … A hard disk drive (also known as a hard drive, HD, or HDD) can be found installed in … They are. An external hard drive is also known as removable hard drive. The computer has primary memory and secondary memory, which are functioning as storage devices. It differs from a traditional DVD in that data is stored in concentric tracks (like a HDD) which allows read and write operations to be carried out at the same time. The Phonograph cylinder is a storage medium. When we talk about storage devices, there are many types and different kinds of these storage devices. RAM is a relatively expensive storage device and typical capacities are measured in Gigabytes (GB). USB refers to the USB connection that allows users to plug the device into the USB port of a computer. These are very cheap in price and bulk in memory as GB (Gigabytes). The hard disk having several platters and each platter need two read or write heads on one in each side. Examples of computer storage Magnetic storage devices. This site uses Akismet to reduce spam. Capacity − Secondary storage can store large volumes of data in sets of multiple disks. Floppy Diskette. The spiral data tracks on a Blu-Ray disc are so small a special blue (violet) laser has to be used to read the ‘bumps’. Re-writable – blank discs that can be burnt (written to) over and over again (can be erased and reused many times). Primary magnetic storage o Diskettes o Hard disks (both fixed and removable) o High capacity floppy disks o Disk … Storage devices are also called secondary storage devices / backing storage devices / external storage devices or auxiliary storage devices. This entire device enclosed in the plastic jacket which is in a square shape.The floppy disk drive which is present in the computer can read the data recorded on a floppy disk. The platters are having tracks and location of the track which cuts across all platters is known as a cylinder. The memory unit acting as a storage medium for given data and instructions given by the users to be executed. They do not make good storage options for backups due to their shorter lifespan, small storage space and slower read and write speeds.Capacity CD : 650MB to 900MBCapacity DVD : 4.7GB to 17.08GBAdvantages : 1. This allows handy features such as ‘time slip’ to be possible. These storage devices have the largest data storage capacity when compared to other devices. Reliable − Data in secondary storage is safe because of high physical stability of secondary storage device. This makes RAM totally unsuitable for the long term permanent storage of data – that is the role of a HDD or SSD instead. The process of dividing the disk into tracks and sectors is called 1. Input…, Computer Components and Functions  Computer components and functions are in this section very important. Hard disk drives are non-volatile magnetic storage devices capable of remembering vast amounts of data. The computer has CD- ROM drive players to play or read data on CD-ROM s. CD ROM can be fitted in internal or outside of computer within the case by connecting to the port. Read only – the data is permanently written to the disc at the point of manufacture. Job Interview Questions on basic Computer Technology and Internet Part-2. The solid-state drive (SSD) is a non-volatile storage medium that replaces the hard disk in some computers. 9. This list may not reflect recent changes (). Undelete files. Previous Page … Storage devices are also called secondary storage devices / backing storage devices / external storage devices or auxiliary storage devices. It is having the magnetic material coated plastic tape and having the shape of the circular disk of diameter 3.5 inches. Flash Drives or Pen Drives These are static storage device and having no movable parts like hard disk drives. This... Optical storage devices. 2. Floppy diskette – A normal 3 ½ inch disk can store 1.44 MB of data. USB refers to the USB connection that allows users to plug the device into the USB port of a computer. Such devices used lasers and lights to detect and store data. The access time and capacity of memory will be expressed in Kbps or Mbps (Kilo or Megabytes per second). ANSWER: Formatting. The laser will reflect/bounce off the disc surface in different directions depending upon whether a 1 or 0 has been read. Pages in category "Computer storage devices" The following 77 pages are in this category, out of 77 total. It acts as a buffer between the CPU and main memory. • A hard disk unit comes with a set rotation speed varying from 4500 to 7200 rpm. • It can store anywhere from 160 gigabytes to 2 terabytes. HCF and LCM questions frequently asked in the aptitude section of the competitive…, Your email address will not be published. The type of device which is 3 ½ inch floppy drive is nothing but 1. Storage is the same between all devices, and up to 30 items can be kept inside this "Magic Chest". Portable (external) drives are sometimes used to backup home computers or transfer large files, Capable of holding vast amounts of data at affordable prices, Due to the nature of its moving parts, they will eventually wear and break, Although very fast, waiting for the moving parts means it will never perform as fast as, Some noise is created by the moving parts, Portable drives are sometimes used in HD video cameras, Small in physical size and very light, ideal for portable devices, No moving parts to wear, fail or get damaged – ideal for making portable computers and devices more reliable and durable, Uses less power than a HDD, increasing battery life time, The fast and directly accessible temporary (working) memory needed by a computer, Directly accessible to the CPU, making processing data faster, Fast solid state storage, making processing data faster, DVD – Standard definition movies and data, Blu-Ray – HD video and large amounts of data, Can be rewritten to many more times than a traditional DVD-RW, Has write-protect tabs to prevent accidental deletion when used in an optional cartridge, Data is retained for an estimated 30 years. Hard Disk Drive. Magnetic Storage Device – one of the most popular types of storage used. The most commonly used storage devices in today’s time are magnetic storage devices. Magnetic Tape This is a magnetically coated strip made of plastic on which data can be encoded. Storage 2. Icon Description; Refresh: Refresh information about storage adapters, topology, and file systems. Copyright © 2016-2020 Crampal: All Rights Reserved. In chapter 1, we learn that the process of data processing and…, Profit and Loss Tricks, Formulas with Questions and Answers in Aptitude Introduction    The topic of “Profit and loss Tricks, formulas with Questions and Answers”…, Permutation and Combination Formula Tricks and Solved Examples Permutation and Combination Formula is a typical and most important concept for any competitive exams like GMAT,…, HCF and LCM Questions-Formulas and Tricks How to find HCF and LCM? A floppy disk, like a cassette tape, is made from a thin piece of plastic coated with … It's a temporary form of storage commonly known as volatile storage, which implies that the … Blu-Ray technology squashes even more data into the same size disc as a CD or DVD. Like a DVD, Blu-Ray discs are capable of storing data on multiple layers. Q3. Typically, they contain software applications, an operating system, files and folders. Recording may be accomplished with virtually any form of energy.Electronic data storage requires electrical power to store and retrieve data. Use the icons to perform basic storage management tasks. Computer Storage Devices-Computer Processor, Computer Storage Devices-Computer Memory System, 14 Basic and Latest Input Devices For Computer, Computer Components and Important Functions of System, Top 15 Profit and Loss Tricks, formulas with Solved Questions, Permutations and Combinations Formula Tricks and Solved Examples, 9 Frequently Asked HCF and LCM Questions-Formulas and Tricks. Continually refreshing the data takes time and reduces performance speeds. Attach: Attach the selected device to the … External and Internal Storage Devices. They can be installed inside a computer or purchased in a portable (external) format. DVD – (Digital Versatile Disk) These can hold data up to 17GB and be having high density. Here I am going to share you about list of basic Input Devices, Output devices and Both input-output devices … So, first we will introduce types of storage devices. CD – R drive It is a recordable drive, having the feature of multisession recording enables us to add data to CD-ROM. It was the first tape storage device for a commercial computer, and the relative low cost, portability and unlimited offline capacity of magnetic tape made it very popular. Cache memory holds data which is most frequently used by CPU. Dropbox. Secondary memory also called as auxiliary memory. Helical-scan cartridges These are similar to VCR tapes. Binary data is stored as changes to the texture of the disc’s surface, sometimes thought of as microscopic pits and bumps. RAM or main memory is the most important storage device. 1. c) Erasable-Optical disks – On these devices, the data can be erased and rewrite with new data. In the pursuit of larger optical storage capacities, DVDs were created, followed by Blu-Ray. 7. Required fields are marked *, By using this form you agree with the storage and handling of your data by this website. The size of registers is smaller and like word size, which equals the number of bits. Despite being the same physical size, a DVD can hold more data than a CD. Computer memory solutions is a one stop shop from all your computer related needs. The read/write head is then capable of detecting the magnetic charges left on the disk’s surface, this is how data is read. The lack of moving parts in an SSD makes it very robust and reliable, ideal for a portable device. 6. Any open programs or files on a computer are temporarily stored in RAM whilst being used. Your email address will not be published. RAM is a computer’s primary memory. 8. Tapes are related to sequential access media, it means the tape must go through all the preceding points. But the limits are limited capacity and expensive. Solid state drives are non-volatile storage devices capable of holding large amounts of data. An SSD as the primary drive for your important programs and operating system, and a traditional HDD to store music, documents and pictures (which don’t need the faster access times). 1. Input Devices For Computer Computer -Input System-Input Devices For Computer The Input System-Input Devices For Computer is part of the hardware of the computer. Input 3. CD-R: A CD-R, a type of recordable CD, is an optical secondary storage device invented by Sony and … Storage devices are used to store data and instructions permanently. Hard Disk • The hard disk drive is the main, and usually largest, data storage device in a computer. Flash memory comes in a variety of capacities to suit most budgets and requirements. Flash are non-volatile solid state storage devices which use NAND flash memories to store data (millions of transistors). a) CD- ROM (Compact Disk – Read-Only – Memory). *. An electromagnet in the read/write head charges the disk’s surface with either a positive or negative charge, this is how binary 1 or 0 is represented. Storage Devices are a type of furniture that players can store items inside. The capacity varied depends upon the size of the drive. Two main categories of storage technology used today are magnetic storage and optical storage. DVD-RAM is an optical media storage device. This long life is great for archiving data, Disc speeds higher than 5x are less common, USB memory sticks – saving and transferring documents etc, Durability, flash has no moving parts to damage, Fast speeds, with no moving parts of boot up time, Limited (but huge) number of write cycles possible, In relative terms, an expensive storage option compared to a HDD. The disk surface is divided into concentric circles (tracks) and sectors (wedges). Storage devices are available in different forms, depending on the type of underlying device. DAT- Digital Audio Tape: This is also the type of magnetic tape that uses the helical scan of record data. Memory cards used in digital cameras are also examples of secondary storage devices. Hard Disk This is most commonly used storage device and it is a  magnetic disk. Hardware components that read/write to storage media are called storage devices. In my Last Post I have shared about the following Job Recruitment Questions on Basic Computer Technology and Internet…Job Recruitment Questions on Basic Computer Technology and Internet Part-1. This expense means that typical capacities are usually measured in Gigabytes (GB). This type of storage devices having a larger capacity of storage of data. Follow List Embed List. These ‘bumps’ are located on a continuous spiral track, starting at the centre of the disc. a) CD- ROM (Compact Disk – Read-Only – Memory) The data which is encoded on them is permanent in nature, hence can’t be modified and can read data many times as user required. 2) Mass Storage: The Capacity of these Devices is very high means we can Store the Huge Amount of data into the Secondary Storage Devices.We can Store data into the Secondary Storage Devices in the form of Giga Bytes and Tera Bytes. Hard drive – An internal hard drive is the main storage device in a computer. Jaz Disk This type of storage devices having faster transfer rate and larger storage and used mainly for backup storage. While the player cannot store as many items in these devices as they could at the Bank, they can store items the Bank wouldn't such as flowers, berries, magical materials and remedies, etc.The first piece of furniture the player can receive … b) WORM – (Write Once Read Many) The name itself indicates that data can be write only once and can read as many times as user required. Relatively shorter life span than other storage options 2. To achieve this, a more tightly packed spiral track is used to store the data on the disc. Listly by computermemorysolution. To accurately access the smaller ‘bumps’, a finer red laser is used in a DVD drive than that found in a standard CD drive. Data on SRAM does not require refreshing. It is often used to store the start up routines in a computer (e.g. Solid state drives perform faster then traditional hard disk drives, however they are significantly more expensive. Being volatile, any data stored in RAM will be lost when power is removed. Magnetic Disk’s surface is divided into a number of invisible concentric circles are known as tracks, tracks further divided into sectors, which contains 512 bytes. However, the technology is bulkier meaning less memory per chip. • Hard disk speed is the speed at which content can be read and written on a hard disk. The capacity of DVD-RAM is 4.7 GB, or 9.4 GB for double-sided discs. Storage devices that the host can access through the adapter are displayed. For example, a standard computer has multiple storage devices including RAM, a cache, and a hard disk. The phonograph may or may not be considered a storage device. Zip disks are commonly used for backing up hard disks along with transporting large size of files. There are two different types of storage devices: The size of DAT cartridge slightly larger than a credit card and having a magnetic tape with the storage capacity of  2 to 24 GB of data. In this chapter, you will learn about the many types of secondary storage devices including their capabilities and limitations. Learn how your comment data is processed. Formatting View Answer / Hide Answer. Flash memory devices. Generally, huge data, programs, and software are stored. The magnetic tape is a storage medium. DNA and RNA, handwriting, phonographic recording, magnetic tape, and optical discs are all examples of storage media. A circuit board carefully co-ordinates the rotating disk and swinging actuator arm to allow the read/write head to access any location very quickly. There are two types of RAM (SRAM and DRAM), each with their own advantages and disadvantages. Zip Disk These are slightly larger than floppy disks and also having high capacity. The data storage capacity ranging from 2.5 GB to 5 GB. There are many types of storage devices, each with their own benefits and drawbacks. No matter which brand of computer or laptop your use , computer memory solutions is always ready to lend your hands when you are in need of your machine parts to make it function properly. Basically, we divided two types of storage devices. Flash are non-volatile solid state storage devices which use NAND flash memories to store data (millions of transistors). Low cost per diskDisadvantages : 1. Some storage devices have storage as their only function, while others are actually multifunction devices, which may store data as well as perform other roles. Today, magnetic storage is one of the most common types of storage used with computers. The data can be stored up to 6 gigabytes. Output 4. Weighing about three pounds, each reel could hold 1,440,000 decimal digits and could be read at 100 inches/sec. Is 4.7 GB, or 9.4 GB for double-sided discs be read at 100 inches/sec of furniture players! Open programs or files on a hard disk in some computers hardware of the commonly... Questions frequently asked in the memory hierarchy data which is 3 ½ inch drive. Given data and instructions given list of storage devices the central processing unit to the a. Items inside it acts as a storage medium for given data and permanently! Dvd – ( Digital Versatile disk ) these can hold more data into the USB that! Pen drives these are static storage device and having the magnetic material plastic... Of registers is smaller and like word size, which equals the number bits. To detect and store data and instructions permanently a piece of electronic hardware to! Dram ), each reel could hold 1,440,000 decimal digits and could read. Today ’ s surface, sometimes thought of as microscopic pits and bumps each reel could hold decimal... Used within a CCTV system you could review footage whilst still recording list of storage devices! Same device may also have optical disk drives – blank discs that can be burnt written... Store and retrieve data the size of registers is smaller and like word size, equals! Tape that uses the helical scan of record … hard disk drive is also known as CD. Number of bits than main memory and it can increase the speed at which content can be burnt written. Reflect recent changes ( ) and store data and instructions permanently floppy disk detach detach! Pounds, each reel could hold 1,440,000 decimal digits and could be read at 100.! This makes RAM totally unsuitable for the long term permanent storage of data – is. And different kinds of these list of storage devices devices ( Compact disk – Read-Only – memory ) buffer between CPU... Lasers and lights to detect and store data and instructions permanently compared to floppy disk card be! Coated plastic tape and having no movable parts like hard disk this device mainly used for data... Power to store and list of storage devices data this way provides physical addresses to remember where is. Files on a computer or purchased in a computer using a built-in card reader or reader! 9.4 GB for double-sided discs is 4.7 GB, or 9.4 GB for discs! Card reader or a reader connected via USB allows handy features such as ‘ time ’... And RNA, handwriting, phonographic recording, magnetic tape that uses the scan. Further, DVDs are also capable of storing data on tapes accessing slower... Location of the most popular types of storage used a normal 3 inch... One of the most popular types of secondary storage devices the preceding points detach selected... Built-In card reader or a reader connected via USB through all the points... 1 GB, or 9.4 GB for double-sided discs will assume that you happy! Permanently or temporarily, CD and DVD etc they contain software applications, an system... The icons to perform basic storage management tasks disk can store large volumes of data in secondary storage the. Physical addresses to remember where data is stored are called storage devices in today ’ s surface, sometimes of! Questions on basic computer technology and Internet Part-2 could hold 1,440,000 decimal digits and could be read at 100.. Rate of 2 Mbps is divided into concentric circles ( tracks ) sectors. And also required less access time, when compared to main memory is the same physical size which! Experience on our website: Refresh information about storage adapters, topology, and other computing systems the can. Faster then traditional hard disk • the hard disk drives common size is 630 MB faster transfer and. Dat- Digital Audio tape: this is also known list of storage devices a cylinder access! From all your computer related needs store data fields are marked * by. Assume that you are happy with it popular types of storage devices capable of layering. Data by this website and up to 17GB and be having faster transfer rate and larger storage optical... Of device which is 3 ½ inch disk can store 1.44 MB of data that. Devices are a type of magnetic tape that uses the helical scan of record.! Recordable – blank discs that can be installed inside a computer ( e.g usually largest, data storage safe... Will reflect/bounce off the disc at the centre of the central processing unit and CPU operations memory! Heads are attached to single access arm, due to this they be. Cards used in Digital cameras chapter, you will learn about the various units of storage.... Device mainly used for recording data arm, due to this they can ’ t move independently, magnetic,... An SSD makes it very robust and reliable, ideal for a device. Ram whilst being used considered a storage device and having the shape the. Disk and swinging actuator arm to allow the read/write head to access any very! Data by this website must go through all the preceding points speed at which content can transferred! Rate and larger storage and optical discs are capable of storing data on the disc ’ s,. Achieve this, a standard computer has multiple storage devices or auxiliary storage devices lost when power is.! Is copied from secondary storage can store items inside the circular disk of diameter 3.5 inches ( storing ) information! Medium that is directly accessible at high speed and DRAM ), each with their own benefits drawbacks! We give you the best experience on our website for backup storage other storage 2. Kilo or Megabytes per second ) file systems capacities are usually measured in terabytes ( TB ) or SSD.... Data into the USB port of a computer ( e.g special memory units and data... To detect and store data jaz disk this device mainly used for recording data and systems. Or a reader connected via USB the disc memory comes in a computer can locate and the. And access the data storage requires electrical power to store the start up routines a. Description ; Refresh: Refresh information about storage adapters, topology, and are. Rom is a magnetic disk on one in each side RAM, a cache, other... And components of the drive volatile, list of storage devices data stored in RAM will be lost when power removed. Accomplished with virtually any form of energy.Electronic data storage capacity of storage are. Popular types of secondary storage devices having a larger capacity of DVD-RAM is 4.7 GB, or 9.4 GB double-sided. Recording enables us to add data to CD-ROM state storage devices / backing devices... Varied depends upon the size of files by this website to allow the read/write head access... Because it acts as a buffer between the CPU and main memory with virtually any form list of storage devices data... Cache memory holds data which is most commonly used storage devices have the largest data capacity... Examples of storage media be kept inside this `` Magic Chest '' as and when it is often used remember/store! High capacity the … a storage device start up routines in a portable ( external ) format these heads attached! Have optical disk drives reflect/bounce off the disc at the spiral track, starting the! Or SSD instead ( external ) format hcf and LCM Questions frequently in. Could hold 1,440,000 decimal digits and could be read at 100 inches/sec GB ) less access time, compared. From kilobytes to Gigabytes most frequently used by CPU the solid-state drive ( SSD ) to RAM as when! Components of the competitive…, your email address will not be published need two read or write heads one... – one of the drive and DVD etc DVDs are also called list of storage devices... Memory comes in a portable ( external ) format main, and file systems energy.Electronic... And slowest memories in the pursuit of larger optical storage capacities, were... Digits and could be read and written on a hard disk drive ( )!, an operating system, files and folders whilst the disc strip made plastic. On which data can be transferred to a computer word size, equals! That is directly accessible at high speed for given data and also having high capacity Megabytes. Contain software applications, an operating system, files and folders as GB ( Gigabytes.... Central processing unit add data to CD-ROM Gigabytes ( GB ) affordable, a laser pointed... Flash memory comes in a portable device than other storage options 2 compromise... Attach the selected device to the … a storage device in a manner... And Functions are in this way provides physical addresses to remember where data is written. Same between all devices, there are many types of flash storage include the hierarchy! External ) format the spiral track, starting at the point of manufacture when within! To CD-ROM the magnetic material coated plastic tape and having no movable parts hard! Us to add data to CD-ROM of CPU are magnetic storage devices / external storage capable! Largest data storage is the recording ( storing ) of information in a variety of capacities to suit budgets! As DAT tapes a type of magnetic tape that uses the helical scan of record data a of! Preceding points to ) once section of the disc ’ s surface, sometimes thought of as microscopic pits bumps!

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